CN104913933A - Heavy load rolling bearing accelerated fatigue test device - Google Patents
Heavy load rolling bearing accelerated fatigue test device Download PDFInfo
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- CN104913933A CN104913933A CN201510254360.9A CN201510254360A CN104913933A CN 104913933 A CN104913933 A CN 104913933A CN 201510254360 A CN201510254360 A CN 201510254360A CN 104913933 A CN104913933 A CN 104913933A
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- 238000005096 rolling process Methods 0.000 title claims abstract description 60
- 238000009661 fatigue test Methods 0.000 title claims abstract description 25
- 238000012360 testing method Methods 0.000 claims abstract description 90
- 230000005540 biological transmission Effects 0.000 claims abstract description 33
- 239000000428 dust Substances 0.000 claims description 58
- 238000002474 experimental method Methods 0.000 claims description 31
- 230000008878 coupling Effects 0.000 claims description 26
- 238000010168 coupling process Methods 0.000 claims description 26
- 238000005859 coupling reaction Methods 0.000 claims description 26
- 239000004519 grease Substances 0.000 claims description 17
- 238000005461 lubrication Methods 0.000 claims description 11
- 238000009434 installation Methods 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 239000000463 material Substances 0.000 claims description 4
- 238000012545 processing Methods 0.000 claims description 4
- 238000011160 research Methods 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 2
- 238000011089 mechanical engineering Methods 0.000 abstract description 2
- 230000001681 protective effect Effects 0.000 abstract 3
- 230000007613 environmental effect Effects 0.000 abstract 1
- 230000008054 signal transmission Effects 0.000 abstract 1
- 238000000034 method Methods 0.000 description 11
- 230000008569 process Effects 0.000 description 11
- FGRBYDKOBBBPOI-UHFFFAOYSA-N 10,10-dioxo-2-[4-(N-phenylanilino)phenyl]thioxanthen-9-one Chemical compound O=C1c2ccccc2S(=O)(=O)c2ccc(cc12)-c1ccc(cc1)N(c1ccccc1)c1ccccc1 FGRBYDKOBBBPOI-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000011664 signaling Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 206010011906 Death Diseases 0.000 description 1
- 206010038743 Restlessness Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
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Abstract
The invention relates to a heavy load rolling bearing accelerated fatigue test device and belongs to the mechanical engineering technical field. The device comprises a driving device, a transmission device, an experimental test device, a loading device, a guide rail device and an anti-overload protective device; the guide device is installed on the ground; the driving device, the transmission device, the experimental test device and the loading device are installed on the guide rail device respectively; the driving device is connected with one end of the transmission device; the other end of the transmission device is connected with one end of the experimental test device; the other end of the experimental test device is connected with the loading device; the driving device is connected with the transmission device through the anti-overload protective device; and the transmission device is connected with the loading device through the anti-overload protective device. The heavy load rolling bearing accelerated fatigue test device of the invention has the advantages of low cost, simple structure, easiness in realization, simple and convenient maintenance. With the heavy load rolling bearing accelerated fatigue test device adopted, a signal transmission path can be shortened; signal attenuation can be reduced; environmental noise interference can be almost eliminated; a fatigue failure cycle can be shortened; scientific research speed and efficiency can be improved; and the safety factor of a test bed can be improved.
Description
Technical field
The present invention relates to a kind of strong load rolling bearing accelerated fatigue test device, belong to mechanical engineering technical field.
Background technology
Rolling bearing occupies very important status in machinery industry, and rolling bearing is described as " joint of industry ".According to made, rotating machinery fault lost efficacy has 30% to cause due to bearing fault problem.The normal operation of enterprise or test can not only be guaranteed to the accurate judgement of rolling bearing contact fatigue inefficacy process; the catastrophic failure in contiguous end-of-life stage can be avoided again and the replacing period of the day from 1 p.m. to 3 p.m. causes shutdown loss, the good economic benefits tool maintaining enterprise is of great significance.The present invention carries out fatigue failure research to thrust bearing, extends in the research to the inefficacy of other type rolling bearing contact fatigue.
Occurring for effectively controlling fault, damage of the bearing situation must be grasped as early as possible, accurately to judge tired process.Earlier damage signal is very faint, very easily falls into oblivion and is difficult to identification in ground unrest, and existing experimental program is open substantially, and neighbourhood noise is very easily mixed into.And complex structure, signaling path is long, and decay is large, is unfavorable for studying early stage feeble signal feature.Even if there is the fatigue test board of short bang path also because the problems such as loading dynamics is inadequate or non-constant make the final damage signal obtained cause damage process to be judged by accident because experiment condition is inconsistent.And because current testing table self structure factor cannot load strong load, even if load strong load still can cause experimental safe hidden danger, bearing failure process is slow, causes the reduction of test and scientific research efficiency.In addition, the lubrication circumstances of the less concern testing table of current testing program self, ignore lubrication and may cause minor components wearing and tearing ahead of time, causing its damage signal to be mixed in echo signal increases identification difficulty, and testing table also reduces because of wearing and tearing serviceable life greatly.
Summary of the invention
The invention provides a kind of strong load rolling bearing accelerated fatigue test device, solving in existing test unit process of the test because the collection signal signal to noise ratio (S/N ratio) easily introducing a large amount of interference noise, the long signal attenuation of bang path causes greatly is low, strong load cannot be loaded, experimental safe coefficient is not high, the non-key element fault interference that may exist in test, testing table cause because lacking the reasons such as lubrication the problem such as bulk life time reduction, test period length.
Technical scheme of the present invention is: a kind of strong load rolling bearing accelerated fatigue test device, comprises drive unit, gearing, experiment test device, charger, track-type facilities, overload safety device; Its track arrangements is placed on ground; drive unit, gearing, experiment test device, charger are installed on track-type facilities; drive unit is connected with gearing one end; the other end of gearing is connected with one end of experiment test device; the other end of experiment test device is connected with charger; between drive unit and gearing, be connected by overload safety device between gearing with charger.
Described drive unit comprises motor 1, shaft coupling 2; Motor 1 is arranged on the slide block 22 of track-type facilities, and shaft coupling 2 one end is connected with the driving shaft of motor 1;
Gearing comprises transmission shaft 3, dust plug 4, dust cap I 5, angular contact bearing I 6, pad 7, angular contact bearing II 8, bearing seat 9, dust cap II 10, bearings dish 11; Bearing seat 9 is arranged on slide block 22, dust plug 4, dust cap I 5, angular contact bearing I 6, pad 7, angular contact bearing II 8, dust cap II 10 are arranged on bearing seat 9, pad 7 is between angular contact bearing I 6, angular contact bearing II 8, transmission shaft 3 is arranged on angular contact bearing I 6, pad 7, angular contact bearing II 8, dust cap II 10, dust cap II 10 and transmission shaft 3, bearing seat 9 front match, transmission shaft 3 one end is connected with shaft coupling 2, and the other end is connected with bearings dish 11;
Experiment test device comprises test thrust bearing 12, centering trip bolt 13, the rolling ring 14 that accelerates fatigue, sensor I 15, sensor II 16, sensor pocket storehouse 18, soundproof rubber block 25; Test thrust bearing 12 side is connected with bearings dish 11, test thrust bearing 12 opposite side installs the rolling ring 14 being connected with sensor pocket storehouse 18 of accelerating fatigue, and fixed by centering trip bolt 13, sensor pocket storehouse 18 other end is connected with charger, centering trip bolt 13, the rolling ring 14 that accelerates fatigue, soundproof rubber block 25 are arranged on bearing seat and hold on storehouse 18, and sensor I 15, sensor II 16 are arranged in sensor pocket storehouse 18 and are connected with rolling ring 14 back that accelerates fatigue;
Charger comprises hydraulic cylinder 19, foot rest 20; Hydraulic cylinder 19 is connected with sensor pocket storehouse 18, and foot rest 20 is connected with hydraulic cylinder 19 and is fixed on slide block 22;
Track-type facilities comprises studs 21, slide block 22, guide rail 23; Guide rail 23 is placed in ground, and slide block 22 is arranged on guide rail 23 by studs 21;
Overload safety device comprises pin 17, antioverloading ceiling 24, floor 26, thrust block 27; Pin 17 is perpendicular to the piston rod of hydraulic cylinder 19; the piston rod of sensor pocket storehouse 18 with hydraulic cylinder 19 is connected by pin 17; bearing seat 9 is connected with hydraulic cylinder 19 by antioverloading ceiling 24, and floor 26 is connected with bearing seat 9 back, and motor 1 is connected with bearing seat 9 by thrust block 27.
The driving shaft of described shaft coupling 2 one end and motor 1 is by key or be threaded connection; Transmission shaft 3 one end is connected by key or by screw thread with shaft coupling 2, and the other end is connected by key or by screw thread with bearings dish 11; Test thrust bearing 12 side is connected by key or by screw thread with bearings dish 11; Floor 26 and bearing seat 9 one are processed or by being welded to connect.
Described bearing seat 9 back is provided with the symmetrical through hole of even number, grease lubrication groove is offered at top; Dust plug 4 and bearing seat 9 backside vias match; Described dust cap I 5 shape and bearing seat 9 top are opened grease lubrication groove shape and are matched.
Described centering trip bolt 13 is perpendicular to sensor pocket storehouse 18 periphery tangent line.
The described rolling ring 14 that accelerates fatigue is diameter, thickness, material with test thrust bearing 12 rolling ring consistent circular sheet complete in Technology for Heating Processing.
Described sensor pocket storehouse 18 is provided with multiple line outlet, and untapped line outlet is sealed by soundproof rubber block 25.
Described hydraulic cylinder 19 has tensimeter and pressurizer.
Described antioverloading ceiling 24 carries out symmetrical in pairs installation with motor shaft, and thrust block 27 carries out symmetry with motor shaft and installs.
The course of work of the present invention is:
First being placed in by hydraulic cylinder 19 on slide block 22 is fixed on guide rail 23, according to anti-tensile bars gear size, motor 1, thrust block 27, bearing seat 9, angular contact bearing I 6, pad 7, angular contact bearing II 8, transmission shaft 3, bearings dish 11 are fixed on appropriate location by Fig. 1 subsequently, motor 1 is connected with transmission shaft 3 by shaft coupling 2.Wherein dust plug 4, dust cap I 5, dust cap II 10 have been arranged on bearing seat 9, and floor 26 is fixedly connected with bearing seat 9 by modes such as welding.Multipair antioverloading ceiling 24 is connected bottom bearing seat 9 with bottom hydraulic cylinder 19.Afterwards, after sensor pocket storehouse 18 is connected by structures such as screw threads with the piston rod of hydraulic cylinder 19, by pin 17, the two is fixed, be placed with sensor I 15(sensor II 16 at rolling ring 14 back that accelerates fatigue can be placed with) simultaneously, will speed up tired rolling ring 14 and sensor (sensor 15 I subsequently, sensor II 16) together detain to sensor pocket storehouse 18, the wire rod of sensor is extended out by the line outlet in sensor pocket storehouse 18, untapped sensor pocket storehouse 18 line outlet then uses soundproof rubber block 25 to carry out sound insulating seal, by similar means such as accurate torque spanneres, centering trip bolt 13 is reversed subsequently, the rolling ring 14 that accelerates fatigue is fixed by the threaded pre-tightening power of centering trip bolt 13.After test thrust bearing 12 other end and bearings dish 11 are connected, start hydraulic cylinder 19 and test thrust bearing 12 is loaded, using hydraulic coupling meter reading as loading benchmark, make loading environment consistent.Finally, by powering to motor 1, drive rotation such as transmission shaft 3 grade, then can launch thrust bearing and accelerate fatigue testing experiment under corresponding speed conditions.After off-test, when not dismantling testing table, removing bearing seat 9 top dust cap I 5 can upgrade railway grease to angular contact bearing I 6 in bearing seat 9 and angular contact bearing II 8 easily.If do not test for a long time or because of be on the verge of angular contact bearing I 6 and angular contact bearing II 8 need to dismantle fatigue lifetime time, by the slightly little pin of the radius ratio dust plug 4 that impacts insertion dust plug 4 hole, bearing seat 9 back simultaneously to take out angular contact bearing I 6 and angular contact bearing II 8 smoothly.
Principle of work of the present invention is:
First drive unit, gearing, experiment test device, charger, track-type facilities, overload safety device are fixed by Fig. 1 position; by charger, test thrust bearing 12 is loaded, and it is in running order to rotate maintenance testing table to motor 1 energising.In process of the test, the rolling ring 14 that accelerates fatigue instead of original bearing runner, changes plane contact into, reduce contact area by curved face contact, can increase contact stress under equal loading environment.Hollow original rolling ring is replaced by the solid rolling ring 14 that accelerates fatigue, many pieces of sensors (sensor I 15, sensor II 16 etc.) can be placed with behind at it, signal can be picked up with the shortest bang path, effectively reduce signal attenuation, especially for high-frequency signal.Coordinate sensor pocket storehouse 18 structure, carry out experiment with almost airtight form, substantially can stop ambient noise interference.Sensor pocket storehouse 18 has many places line outlet, and facilitate the centralization and decentralization of sensor wire to lay, untapped line outlet is sealed by soundproof rubber block 25, effectively reduces the noise from outside in sensor pocket storehouse 18.Threaded hole is furnished with at the port in sensor pocket storehouse 18, by accurate torque spanner, centering trip bolt 13 is reversed, fix by the threaded pre-tightening power of centering trip bolt 13 rolling ring 14 that accelerates fatigue, make rolling ring 14 centering all the time that accelerates fatigue before and after test, ensured that loading force is even.Because testing requirements applies strong load to shorten the test period, accelerate scientific research process, overload safety device can ensure that test safety under strong load is carried out.Pin 17 can prevent the excessive friction produced because of strong load from being rotated in the sensor pocket storehouse 18 be connected with hydraulic cylinder 19 piston rod thread, prevents displacement that is because sensor pocket storehouse 18 is rotated, sensor wire is curling, that break or cause sensor because of pulling function, damage.Antioverloading ceiling 24 has multiple positions gear; the selection carrying out different gear can be needed according to concrete test; can guarantee that in process of the test charger load deflection is no more than the position of antioverloading ceiling 24 restriction, make motor 1 driving shaft not cause damage because of overload.Coordinating behind floor 26 and inside thereof angular contact ball bearing I 6, angular contact ball bearing II 8 to be connected at bearing seat 9, enhance the ability of bearing seat 9 entirety opposing thrust, preventing bearing seat 9 excessive and cause the generation of the problems such as fracture of root because bearing thrust.Motor 1, bearing seat 9 connect by thrust block 27; the strong load applied is made to be shared a part by the friction force between motor 1 and guide rail 23; reduce further the potential safety hazard applying strong load and may cause; make to remain certain distance between motor 1 and bearing seat 9 simultaneously, also protect the normally shaftless to load operation of motor 1 driving shaft further.Bearing seat 9 top has grease trough; can facilitate when not dismantling testing table, upgrading railway grease timely; avoid losing efficacy because of railway grease or lacked non-critical component wearing and tearing that the reasons such as railway grease cause and the signal of collection is interfered; more can avoid the stopping accident caused thus; extend testing table serviceable life; and coordinate dust cap I 5, dust cap II 10, ensure the clean of railway grease.Adopting with loading duration hydraulic coupling meter reading as loading benchmark in process of the test, making loading environment before and after in process of the test consistent.
Illustrate: principle of work is only the workflow that strong load bearings fatigue test board is described, is not limited to the structure in principle of work and connected mode.
The invention has the beneficial effects as follows:
1, cost is lower, structure is simple, be easy to realization, safeguard simple, convenience;
2, owing to devising accelerate fatigue rolling ring and sensor pocket chamber structure, can signaling path be shortened, reduce signal attenuation and almost stop ambient noise interference;
3, owing to devising overload safety device, can strengthen load in process of the test, can shorten the fatigue failure cycle, improve scientific research speed and efficiency, testing table safety coefficient is improved;
4, owing to devising centering trip bolt, ensure that test bearing centering all the time before and after test, even by loading force;
5, owing to devising the bearing seat having grease trough, conveniently can upgrade railway grease, eliminate non-critical component interference, collection signal damage characterizes accurately, can ensure that test is good to run, effectively avoid the shutdown caused because of testing table fault, and railway grease cleans to coordinate dust cap to ensure, extends testing table serviceable life to a certain extent;
6, owing to devising the multiple gear of antioverloading ceiling, can sets itself gear to determine the withdrawal space, facilitate the observation to damage of the bearing process.
Accompanying drawing explanation
Fig. 1 is one-piece construction schematic diagram of the present invention;
Fig. 2 is partial structurtes enlarged diagram of the present invention;
Fig. 3 is the transmission shaft front view in gearing of the present invention;
Fig. 4 is the transmission shaft right view in gearing of the present invention;
Fig. 5 is the three-dimensional normal axomometric drawing of transmission shaft in gearing of the present invention;
Fig. 6 is dust cap I front view in gearing of the present invention;
Fig. 7 is dust cap I cut-open view in gearing of the present invention;
Fig. 8 is the three-dimensional normal axomometric drawing of dust cap I in gearing of the present invention;
Fig. 9 is the bearing seat front view in gearing of the present invention;
Figure 10 is the bearing seat cut-open view in gearing of the present invention;
Figure 11 is the three-dimensional normal axomometric drawing of bearing seat in gearing of the present invention;
Figure 12 is dust cap II front view in gearing of the present invention;
Figure 13 is dust cap II cut-open view in gearing of the present invention;
Figure 14 is the three-dimensional normal axomometric drawing of dust cap II in gearing of the present invention;
Figure 15 is the bearings dish front view in gearing of the present invention;
Figure 16 is the bearings dish cut-open view in gearing of the present invention;
Figure 17 is the three-dimensional normal axomometric drawing of bearings dish in gearing of the present invention;
Figure 18 is the sensor pocket storehouse front view in experiment test device of the present invention;
Figure 19 is the sensor pocket storehouse cut-open view in experiment test device of the present invention;
Figure 20 is the three-dimensional normal axomometric drawing in sensor pocket storehouse in experiment test device of the present invention;
In figure, each label is: 1-motor, 2-shaft coupling, 3-transmission shaft, 4-dust plug, 5-dust cap I, 6-angular contact bearing I, 7-pad, 8-angular contact bearing II, 9-bearing seat, 10-dust cap II, 11-bearings dish, 12-test thrust bearing, 13-centering trip bolt, 14-accelerate fatigue rolling ring, 15-sensor I, 16-sensor II, 17-pin, 18-sensor pocket storehouse, 19-hydraulic cylinder, 20-foot rest, 21-studs, 22-slide block, 23-guide rail, 24-antioverloading ceiling, 25-soundproof rubber block, 26-floor, 27-thrust block.
Embodiment
Below in conjunction with drawings and Examples, the invention will be further described, but content of the present invention is not limited to described scope.
Embodiment 1: as shown in Fig. 1-2 0, a kind of strong load rolling bearing accelerated fatigue test device, comprises drive unit, gearing, experiment test device, charger, track-type facilities, overload safety device; Its track arrangements is placed on ground; drive unit, gearing, experiment test device, charger are installed on track-type facilities; drive unit is connected with gearing one end; the other end of gearing is connected with one end of experiment test device; the other end of experiment test device is connected with charger; between drive unit and gearing, be connected by overload safety device between gearing with charger.
Described drive unit comprises motor 1, shaft coupling 2; Motor 1 is arranged on the slide block 22 of track-type facilities, and shaft coupling 2 one end is connected with the driving shaft of motor 1;
Gearing comprises transmission shaft 3, dust plug 4, dust cap I 5, angular contact bearing I 6, pad 7, angular contact bearing II 8, bearing seat 9, dust cap II 10, bearings dish 11; Bearing seat 9 is arranged on slide block 22, dust plug 4, dust cap I 5, angular contact bearing I 6, pad 7, angular contact bearing II 8, dust cap II 10 are arranged on bearing seat 9, pad 7 is between angular contact bearing I 6, angular contact bearing II 8, transmission shaft 3 is arranged on angular contact bearing I 6, pad 7, angular contact bearing II 8, dust cap II 10, dust cap II 10 and transmission shaft 3, bearing seat 9 front match, transmission shaft 3 one end is connected with shaft coupling 2, and the other end is connected with bearings dish 11;
Experiment test device comprise test thrust bearing 12, centering trip bolt 13(as: 4 mutual in 90 °/3 be mutually 120 °), the rolling ring 14 that accelerates fatigue, sensor I 15, sensor II 16(sensor I 15 be calibrate AE sensor, sensor II 16 is vibration transducer), sensor pocket storehouse 18, soundproof rubber block 25; Test thrust bearing 12 side is connected with bearings dish 11, test thrust bearing 12 opposite side installs the rolling ring 14 being connected with sensor pocket storehouse 18 of accelerating fatigue, and fixed by centering trip bolt 13, sensor pocket storehouse 18 other end is connected with charger, centering trip bolt 13, the rolling ring 14 that accelerates fatigue, soundproof rubber block 25 are arranged on bearing seat and hold on storehouse 18, and sensor I 15, sensor II 16 are arranged in sensor pocket storehouse 18 and are connected with rolling ring 14 back that accelerates fatigue;
Charger comprises hydraulic cylinder 19, foot rest 20; Hydraulic cylinder 19 is connected with sensor pocket storehouse 18, and foot rest 20 is connected with hydraulic cylinder 19 and is fixed on slide block 22;
Track-type facilities comprises studs 21, slide block 22, guide rail 23; Guide rail 23 is placed in ground, and slide block 22 is arranged on guide rail 23 by studs 21;
Overload safety device comprises pin 17, antioverloading ceiling 24, floor 26, thrust block 27; Pin 17 is perpendicular to the piston rod of hydraulic cylinder 19; the piston rod of sensor pocket storehouse 18 with hydraulic cylinder 19 is connected by pin 17; bearing seat 9 is connected with hydraulic cylinder 19 by antioverloading ceiling 24, and floor 26 is connected with bearing seat 9 back, and motor 1 is connected with bearing seat 9 by thrust block 27.
Described shaft coupling 2 one end is connected by key with the driving shaft of motor 1; Transmission shaft 3 one end is connected by key with shaft coupling 2, and the other end is connected by key with bearings dish 11; Test thrust bearing 12 side is connected by key with bearings dish 11; Floor 26 is processed with bearing seat 9 one.
Described bearing seat 9 back is provided with the symmetrical through hole of even number, grease lubrication groove is offered at top; Dust plug 4 and bearing seat 9 backside vias match; Described dust cap I 5 shape and bearing seat 9 top are opened grease lubrication groove shape and are matched.
Described centering trip bolt 13 is perpendicular to sensor pocket storehouse 18 periphery tangent line.
The described rolling ring 14 that accelerates fatigue is diameter, thickness, material with test thrust bearing 12 rolling ring consistent circular sheet complete in Technology for Heating Processing.
Described sensor pocket storehouse 18 is provided with 2 line outlets, and untapped line outlet is sealed by soundproof rubber block 25.
Described hydraulic cylinder 19 has tensimeter and pressurizer.
Described antioverloading ceiling 24 carries out symmetrical in pairs installation with motor shaft; thrust block 27 carries out symmetry installation with motor shaft, and (as: 2 pairs of antioverloading ceilings, 24,3 pieces of thrust block 27:2 are connected bottom bearing seat 9 with bottom hydraulic cylinder 19 to antioverloading ceiling 24; 3 pieces of thrust blocks 27 offset bottom motor 1 with bottom bearing seat 9; wherein two pieces are symmetrically distributed in motor 1 and bearing seat 9 bottom margin both sides, remain 1 piece and are positioned at motor 1 and bearing seat 9 bottom margin center position).
Embodiment 2: as shown in Fig. 1-2 0, substantially the same manner as Example 1, its difference is: a kind of strong load rolling bearing accelerated fatigue test device,
Described sensor pocket storehouse 18 is provided with 8 line outlets, and untapped line outlet is sealed by soundproof rubber block 25.
The driving shaft of described shaft coupling 2 one end and motor 1 is threaded connection; Transmission shaft 3 one end is connected by screw thread with shaft coupling 2, and the other end is connected by screw thread with bearings dish 11; Test thrust bearing 12 side is connected by screw thread with bearings dish 11; Floor 26 and bearing seat 9 are by being welded to connect.
Embodiment 3: as shown in Fig. 1-2 0, substantially the same manner as Example 1, its difference is: a kind of strong load rolling bearing accelerated fatigue test device,
Described sensor pocket storehouse 18 is provided with 4 line outlets (mutual in 90 ° symmetrical), and untapped line outlet is sealed by soundproof rubber block 25.
The driving shaft of described shaft coupling 2 one end and motor 1 is threaded connection; Transmission shaft 3 one end is connected by key with shaft coupling 2, and the other end is connected by key with bearings dish 11; Test thrust bearing 12 side is connected by screw thread with bearings dish 11; 1 pair of floor 26 is symmetrically distributed in both sides, bearing seat back, and is fixed by welding manner and bearing seat 9 back.
Embodiment 4: as shown in Fig. 1-2 0, a kind of strong load rolling bearing accelerated fatigue test device, comprises drive unit, gearing, experiment test device, charger, track-type facilities, overload safety device; Its track arrangements is placed on ground; drive unit, gearing, experiment test device, charger are installed on track-type facilities; drive unit is connected with gearing one end; the other end of gearing is connected with one end of experiment test device; the other end of experiment test device is connected with charger; between drive unit and gearing, be connected by overload safety device between gearing with charger.
Described drive unit comprises motor 1, shaft coupling 2; Motor 1 is arranged on the slide block 22 of track-type facilities, and shaft coupling 2 one end is connected with the driving shaft of motor 1;
Gearing comprises transmission shaft 3, dust plug 4, dust cap I 5, angular contact bearing I 6, pad 7, angular contact bearing II 8, bearing seat 9, dust cap II 10, bearings dish 11; Bearing seat 9 is arranged on slide block 22, dust plug 4, dust cap I 5, angular contact bearing I 6, pad 7, angular contact bearing II 8, dust cap II 10 are arranged on bearing seat 9, pad 7 is between angular contact bearing I 6, angular contact bearing II 8, transmission shaft 3 is arranged on angular contact bearing I 6, pad 7, angular contact bearing II 8, dust cap II 10, dust cap II 10 and transmission shaft 3, bearing seat 9 front match, transmission shaft 3 one end is connected with shaft coupling 2, and the other end is connected with bearings dish 11;
Experiment test device comprise test thrust bearing 12, centering trip bolt 13(as: 4 mutual in 90 °/3 be mutually 120 °), the rolling ring 14 that accelerates fatigue, sensor I 15, sensor II 16(sensor I 15, sensor II 16 be calibrate AE sensor), sensor pocket storehouse 18, soundproof rubber block 25; Test thrust bearing 12 side is connected with bearings dish 11, test thrust bearing 12 opposite side installs the rolling ring 14 being connected with sensor pocket storehouse 18 of accelerating fatigue, and fixed by centering trip bolt 13, sensor pocket storehouse 18 other end is connected with charger, centering trip bolt 13, the rolling ring 14 that accelerates fatigue, soundproof rubber block 25 are arranged on bearing seat and hold on storehouse 18, and sensor I 15, sensor II 16 are arranged in sensor pocket storehouse 18 and are connected with rolling ring 14 back that accelerates fatigue;
Charger comprises hydraulic cylinder 19, foot rest 20; Hydraulic cylinder 19 is connected with sensor pocket storehouse 18, and foot rest 20 is connected with hydraulic cylinder 19 and is fixed on slide block 22;
Track-type facilities comprises studs 21, slide block 22, guide rail 23; Guide rail 23 is placed in ground, and slide block 22 is arranged on guide rail 23 by studs 21;
Overload safety device comprises pin 17, antioverloading ceiling 24, floor 26, thrust block 27; Pin 17 is perpendicular to the piston rod of hydraulic cylinder 19; the piston rod of sensor pocket storehouse 18 with hydraulic cylinder 19 is connected by pin 17; bearing seat 9 is connected with hydraulic cylinder 19 by antioverloading ceiling 24, and floor 26 is connected with bearing seat 9 back, and motor 1 is connected with bearing seat 9 by thrust block 27.
Described bearing seat 9 back is provided with the symmetrical through hole of even number, grease lubrication groove is offered at top; Dust plug 4 and bearing seat 9 backside vias match; Described dust cap I 5 shape and bearing seat 9 top are opened grease lubrication groove shape and are matched.
Described centering trip bolt 13 is perpendicular to sensor pocket storehouse 18 periphery tangent line.
The described rolling ring 14 that accelerates fatigue is diameter, thickness, material with test thrust bearing 12 rolling ring consistent circular sheet complete in Technology for Heating Processing.
Described sensor pocket storehouse 18 is provided with multiple line outlet, and untapped line outlet is sealed by soundproof rubber block 25.
Described hydraulic cylinder 19 has tensimeter and pressurizer.
Described antioverloading ceiling 24 carries out symmetrical in pairs installation with motor shaft; thrust block 27 carries out symmetry installation with motor shaft, and (as: 1 pair of antioverloading ceiling, 24,2 pieces of thrust block 27:1 are connected bottom bearing seat 9 with bottom hydraulic cylinder 19 to antioverloading ceiling 24; 2 pieces of thrust blocks 27 offset bottom motor 1 with bottom bearing seat 9, and are symmetrically distributed in motor 1 and bearing seat 9 bottom margin both sides).
Embodiment 5: as shown in Fig. 1-2 0, a kind of strong load rolling bearing accelerated fatigue test device, comprises drive unit, gearing, experiment test device, charger, track-type facilities, overload safety device; Its track arrangements is placed on ground; drive unit, gearing, experiment test device, charger are installed on track-type facilities; drive unit is connected with gearing one end; the other end of gearing is connected with one end of experiment test device; the other end of experiment test device is connected with charger; between drive unit and gearing, be connected by overload safety device between gearing with charger.
By reference to the accompanying drawings the specific embodiment of the present invention is explained in detail above, but the present invention is not limited to above-mentioned embodiment, in the ken that those of ordinary skill in the art possess, various change can also be made under the prerequisite not departing from present inventive concept.
Claims (9)
1. a strong load rolling bearing accelerated fatigue test device, is characterized in that: comprise drive unit, gearing, experiment test device, charger, track-type facilities, overload safety device; Its track arrangements is placed on ground; drive unit, gearing, experiment test device, charger are installed on track-type facilities; drive unit is connected with gearing one end; the other end of gearing is connected with one end of experiment test device; the other end of experiment test device is connected with charger; between drive unit and gearing, be connected by overload safety device between gearing with charger.
2. strong load rolling bearing accelerated fatigue test device according to claim 1, is characterized in that:
Described drive unit comprises motor (1), shaft coupling (2); Motor (1) is arranged on the slide block (22) of track-type facilities, and shaft coupling (2) one end is connected with the driving shaft of motor (1);
Gearing comprises transmission shaft (3), dust plug (4), dust cap I (5), angular contact bearing I (6), pad (7), angular contact bearing II (8), bearing seat (9), dust cap II (10), bearings dish (11), bearing seat (9) is arranged on slide block (22), dust plug (4), dust cap I (5), angular contact bearing I (6), pad (7), angular contact bearing II (8), dust cap II (10) is arranged on bearing seat (9), pad (7) is positioned at angular contact bearing I (6), between angular contact bearing II (8), transmission shaft (3) is arranged on angular contact bearing I (6), pad (7), angular contact bearing II (8), on dust cap II (10), dust cap II (10) and transmission shaft (3), bearing seat (9) front matches, transmission shaft (3) one end is connected with shaft coupling (2), the other end is connected with bearings dish (11),
Experiment test device comprises test thrust bearing (12), centering trip bolt (13), the rolling ring that accelerates fatigue (14), sensor I (15), sensor II (16), sensor pocket storehouse (18), soundproof rubber block (25), test thrust bearing (12) side is connected with bearings dish (11), test thrust bearing (12) opposite side is installed the rolling ring that accelerates fatigue (14) and is connected with sensor pocket storehouse (18), and fixed by centering trip bolt (13), sensor pocket storehouse (18) other end is connected with charger, centering trip bolt (13), accelerate fatigue rolling ring (14), soundproof rubber block (25) is arranged on bearing seat and holds on storehouse (18), sensor I (15), sensor II (16) is arranged in sensor pocket storehouse (18) and is connected with the rolling ring that accelerates fatigue (14) back,
Charger comprises hydraulic cylinder (19), foot rest (20); Hydraulic cylinder (19) is connected with sensor pocket storehouse (18), and foot rest (20) is connected with hydraulic cylinder (19) and is fixed on slide block (22);
Track-type facilities comprises studs (21), slide block (22), guide rail (23); Guide rail (23) is placed in ground, and slide block (22) is arranged on guide rail (23) by studs (21);
Overload safety device comprises pin (17), antioverloading ceiling (24), floor (26), thrust block (27); Pin (17) is perpendicular to the piston rod of hydraulic cylinder (19); sensor pocket storehouse (18) piston rod with hydraulic cylinder (19) is connected by pin (17); bearing seat (9) is connected with hydraulic cylinder (19) by antioverloading ceiling (24); floor (26) is connected with bearing seat (9) back, and motor (1) is connected with bearing seat (9) by thrust block (27).
3. strong load rolling bearing accelerated fatigue test device according to claim 2, is characterized in that: the driving shaft of described shaft coupling (2) one end and motor (1) is by key or be threaded connection; Transmission shaft (3) one end is connected by key or by screw thread with shaft coupling (2), and the other end is connected by key or by screw thread with bearings dish (11); Test thrust bearing (12) side is connected by key or by screw thread with bearings dish (11); Floor (26) and bearing seat (9) one is processed or by being welded to connect.
4. the strong load rolling bearing accelerated fatigue test device according to Claims 2 or 3, is characterized in that: described bearing seat (9) back is provided with the symmetrical through hole of even number, grease lubrication groove is offered at top; Dust plug (4) and bearing seat (9) backside vias match; Described dust cap I (5) shape and bearing seat (9) top are opened grease lubrication groove shape and are matched.
5. the strong load rolling bearing accelerated fatigue test device according to Claims 2 or 3, is characterized in that: described centering trip bolt (13) is perpendicular to sensor pocket storehouse (18) periphery tangent line.
6. the strong load rolling bearing accelerated fatigue test device according to Claims 2 or 3, is characterized in that: described in accelerate fatigue that rolling ring (14) is diameter, circular sheet that thickness, material are completely consistent with test thrust bearing (12) rolling ring with Technology for Heating Processing.
7. the strong load rolling bearing accelerated fatigue test device according to Claims 2 or 3, it is characterized in that: described sensor pocket storehouse (18) is provided with multiple line outlet, untapped line outlet is sealed by soundproof rubber block (25).
8. the strong load rolling bearing accelerated fatigue test device according to Claims 2 or 3, is characterized in that: described hydraulic cylinder (19) has tensimeter and pressurizer.
9. the strong load rolling bearing accelerated fatigue test device according to Claims 2 or 3, is characterized in that: described antioverloading ceiling (24) carries out symmetrical in pairs installation with motor shaft, and thrust block (27) carries out symmetry with motor shaft and installs.
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